Well I had the same problem when I was preparing for my cousins wedding around 5 months ago. I went for a semi-traditional look with a lower-cut tweed jacket and waistcoat than an Argyll, silk tie to match the green in my kilt and tartan hose-tops, instead of solid or full tartan hose. I'd only replace the ghillie brogues with standard brogues, as I really liked the outfit and it really seems different to the "regular/standard" kilt package, as I suited it to myself. If you want to stand out a bit (although - like me you may already, being the only one kilted!) then go for something a little different, although, stick to the basics and build it up from there.

Here's a picture of what I wore (excuse the sun... we don't see it very much!):